package com.itheima;

public class Demo7 {
    public static void main(String[] args) {
        int [] arr = {10,20,30};
        System.out.println("调用change方法前" + arr[1]);
        change(arr);
        System.out.println("调用change方法后:"+ arr[1]);
}

    public static void change(int[] brr) {
        brr[1] = 200;
    }
}